CVE-2018-17972

2018-10-0300:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:C/I:N/A:N

0.0004 Low

EPSS

Percentile

9.4%

JSON

An issue was discovered in the proc_pid_stack function in fs/proc/base.c in
the Linux kernel through 4.18.11. It does not ensure that only root may
inspect the kernel stack of an arbitrary task, allowing a local attacker to
exploit racy stack unwinding and leak kernel task stack contents.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-44.47UNKNOWN
ubuntu18.10noarchlinux< 4.18.0-12.13UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-165.215UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-139.165UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1032.34UNKNOWN
ubuntu18.10noarchlinux-aws< 4.18.0-1006.7UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1034.37UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1072.82UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1032.34~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 4.15.0-1037.39UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-44.47	UNKNOWN
ubuntu	18.10	noarch	linux	< 4.18.0-12.13	UNKNOWN
ubuntu	14.04	noarch	linux	< 3.13.0-165.215	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-139.165	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1032.34	UNKNOWN
ubuntu	18.10	noarch	linux-aws	< 4.18.0-1006.7	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1034.37	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1072.82	UNKNOWN
ubuntu	16.04	noarch	linux-aws-hwe	< 4.15.0-1032.34~16.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-azure	< 4.15.0-1037.39	UNKNOWN